failed to determine external ip address

[ferenc10]

Every time I make a multiplayer game, I get this message (Failed to determine external ip address) and my friends can not join my game

But if my friend makes a game, I get this message (coud`t establish network commuication with server)


What should I do to get in and play with my friends again

[mexmer]

make sure your firewall is not blocking the game.

[ferenc10]

It's approved in my firewall I've made a port forward and I've made a fixed ip

And I get the same message from the game when I want to play with my friends

[Shokubai]

Check if the port is open http://www.yougetsignal.com/tools/open-ports/

Side note. If this continues to be a problem, download hamachi and play LAN.